Friday's earthquake was felt in Sibi, Mach, Quetta and nearby areas. (Agencies)
The magnitude of the first earthquake was 4.9 and the epicenter was 22km east of Mach, according to the United States Geological Survey (USGS).
The tremors caused fear and disorder, with people running out of their homes and into the streets.
A second quake was felt in the area, adding more fears.
A 7.7-magnitude quake had struck Balochistan on September 24, spreading havoc through Awaran and Kech districts and southwestern parts of the country. Over 500 people were killed and more than 800 injured in the tragedy.
The quake had destroyed access routes to many areas in the province, making it difficult to determine exact figures of the victims.
Friday's earthquake was felt in Sibi, Mach, Quetta and nearby areas.